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2170885152 = 25389254083
BaseRepresentation
bin1000000101100101…
…0001010000100000
312121021220101120210
42001121101100200
513421221311102
6555225334120
7104540135142
oct20131212040
95537811523
102170885152
11a14454167
12507037340
132879a9537
1416845cc92
15ca8ba36c
hex81651420

2170885152 has 48 divisors (see below), whose sum is σ = 5762625120. Its totient is φ = 715494912.

The previous prime is 2170885139. The next prime is 2170885177. The reversal of 2170885152 is 2515880712.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2170885152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118498 + ... + 135585.

It is an arithmetic number, because the mean of its divisors is an integer number (120054690).

Almost surely, 22170885152 is an apocalyptic number.

It is an amenable number.

2170885152 is an abundant number, since it is smaller than the sum of its proper divisors (3591739968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2170885152 is a wasteful number, since it uses less digits than its factorization.

2170885152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254185 (or 254177 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 39.

The square root of 2170885152 is about 46592.7585789895. The cubic root of 2170885152 is about 1294.8285978382.

The spelling of 2170885152 in words is "two billion, one hundred seventy million, eight hundred eighty-five thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 89 96 178 267 356 534 712 1068 1424 2136 2848 4272 8544 254083 508166 762249 1016332 1524498 2032664 3048996 4065328 6097992 8130656 12195984 22613387 24391968 45226774 67840161 90453548 135680322 180907096 271360644 361814192 542721288 723628384 1085442576 2170885152